Support hook



FIG. 1 is a front, perspective view of a support hook showing a first embodiment of our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The features shown in broken lines are portions of the support hook forming no part of the claimed design. 

CLAIM The ornamental design for a support hook, as shown and described. 